clandestine
Definition
Kept secret or done secretively, especially because it is illicit or improper.
日本語 秘密裡に行うことや、非合法または不適切なことを行うこと
Example
"The agents held a clandestine meeting in the abandoned warehouse."
Kept secret or done secretively, especially because it is illicit or improper.
日本語 秘密裡に行うことや、非合法または不適切なことを行うこと
"The agents held a clandestine meeting in the abandoned warehouse."